Motor soft starters use scr(thyristor)as the main control device. By adjusting the trigger angle of scr to reduce the incoming voltage to the motor. The current is monitored until the motor reaches to full speed. The thyristors then bypassed by connecting the motor directly to the power supply by ac contactor. Motor soft starter protects motor from damage by the inrush current when startup.
1.The computer simulation design, SMT production process, Good EMC performance.
2.Perfect protection function: No voltage, less voltage, over voltage, over heating, starting time too long, Input phase lost, output phase lost, 3phase unbalance, starting over current, running overload, load short circuit.
3. Fault self-diagnosis(short circuit, over voltage, less voltage, one phase grounded, motor overload, one phase lost, motor blocked, and intelligent software can inspect drag system working state).
4.Combination of modular design, according to the fault display content, quick troubleshooting.
5. Independently software copyright.
6. Motor starting and protection proprietary technology.
7. Unique way to detect debug equipment and process.
8.Reliable performances lay the foundation of qualified service and quality.
9.Provide perfect system solution.
10.The timely and thoughtful Consulting Services.
11.Constantly improve the product performance according to user's opinion
Power supply | AC380V±10%, 50/60Hz |
Adaptive Motor | Squirrel-cage three-phase asynchronous motor |
Starting times | It is recommended not to exceed 20 times per hour |
Control mode | 1) Operation panel control; 2) External control; 3) Communication control; |
Start Mode | 1) Current-limiting start; 2) Voltage ramp start; 3) Current ramp start; |
Stop Mode | 1) Soft stop; 2) Free stop; |
Protective Function |
1) Over-voltage protection for power voltage;
2) Under voltage protection for power voltage; 3) Overload protection; 4) Over temperature protection; 5) Open phase protection; 6) Over current protection; 7) Stall protection; |
Display | LCD display screen |
Start time | 1--60s adjustable |
Stop time | 0--60s adjustable |
Protection Class | IP00,IP20 |
Cooling Pattern | Natural wind cooling |
Place to be used | Indoor location with good ventilation free from corrosive gas and conductive dust. |
Environment Condition | Below 2000M. Rise the rate power when the altitude is more than 2000M. Ambient Temperature -25+45°C Ambient Humidity 95%(20°C±5°C) Vibration<0.5G |
Model | Voltage | Power | Current | Dimension(mm) | N.W | ||
(V) | (kW) | (A) | H | W | D | (KG) | |
NK600-008-3 | 380V | 7.5 | 15 | 230 | 130 | 128 | 2 |
NK600-011-3 | 380V | 11 | 22 | ||||
NK600-015-3 | 380V | 15 | 30 | ||||
NK600-018-3 | 380V | 18.5 | 37 | ||||
NK600-022-3 | 380V | 22 | 44 | ||||
NK600-030-3 | 380V | 30 | 60 | ||||
NK600-037-3 | 380V | 37 | 74 | ||||
NK600-045-3 | 380V | 45 | 90 | ||||
NK600-055-3 | 380V | 55 | 110 | ||||
NK600-075-3 | 380V | 75 | 150 | 296 | 169 | 192 | 5 |
NK600-090-3 | 380V | 90 | 180 | ||||
NK600-110-3 | 380V | 110 | 220 | 440 | 220 | 185.5 | 18 |
NK600-132-3 | 380V | 132 | 264 | ||||
NK600-160-3 | 380V | 160 | 320 | ||||
NK600-200-3 | 380V | 200 | 400 | 480 | 262 | 185.5 | 20 |
NK600-220-3 | 380V | 220 | 440 | ||||
NK600-250-3 | 380V | 250 | 500 | ||||
NK600-280-3 | 380V | 280 | 560 | ||||
NK600-315-3 | 380V | 315 | 630 | ||||
NK600-355-3 | 380V | 355 | 710 | 620 | 372 | 185.5 | 28 |
NK600-400-3 | 380V | 400 | 800 | ||||
NK600-450-3 | 380V | 450 | 900 | ||||
NK600-500-3 | 380V | 500 | 1000 | ||||
NK600-630-3 | 380V | 630 | 1260 |
Choosing a motor soft starter depends on the following information:
1. Application type and load type;
2. Nominal power and current of the motor;
3. Supply voltage condition and location;
4. The freqquency of start and stop motor in a given period;
The loading | Voltage ramp start time(s) | Voltage ramp stop time(s) | Initial voltage | Voltage ramp (Current limit) | Current limitto start |
Bill mill machine | 20 | 6 | 60% | 400% | 350% |
Fan | 26 | 4 | 30% | 400% | 350% |
Centrifugal | 16 | 20 | 40% | 400% | 250% |
Piston compressor | 16 | 4 | 40% | 400% | 300% |
hoister | 16 | 10 | 60% | 400% | 350% |
Stirring machine | 16 | 2 | 50% | 400% | 300% |
Breaker | 16 | 10 | 50% | 400% | 350% |
Screw compressor | 16 | 2 | 40% | 400% | 300% |
Rotating conveyor | 20 | 10 | 40% | 400% | 200% |
Light load | 16 | 2 | 30% | 400% | 300% |
Convey belt | 20 | 10 | 40% | 400% | 250% |
Heat pump | 16 | 20 | 40% | 400% | 300% |
Motor soft starter can be widely used as blew:
● Pump: make use of the soft stop function to relieve the influence of water hammer so as to save the system maintenance cost.
● Ball mill: make use of the voltage ramp startup to reduce gear torque friction so as to save cost and time.
● Fan: reduce the belt friction and mechanical conflict to save maintenance cost.
● Conveyor: make use of the soft start to realize smooth and gradual startup process in order to avoid product move and liquid overflow.
● Compressor: use limited current to realize smooth start-up, decrease heat from motor and prolong device life.
● Others.
1. ODM/OEM service is offered.
2. Quick order confirmation.
3. Fast delivery time.
4. Convenient payment term.
At present, the company is vigorously expanding overseas markets and global layout. We are committed to becoming one of the top ten export enterprises in China’s electrical automatic product, serving the world with high-quality products and achieving a win-win situation with more customers.